Camera Flipping 180 Degrees
 

Why is my camera doing this flip. It changes the lighting direction. There's no key as you can see and I've zeroed everything in the graph editor and changed the type to linear.

Very wierd - I've never seen it do that before (you don't have any motion modifiers linked to it do you)?

Is the camera view also flipping? I'm just thinking that it might be a glitch purely in the layout view.

Sort of figured it out but still doesn't make sense. I have the camera targeted to the cup so I think that's why it's flipping - because it's passing over the zenith of the cup.

The strange thing is, is that the tweened data still is there even if the keys change.

So I moved the cup further back along Z axis and remade the camera keys. Now I a getting these short bursts of motion that I think are coming from my messing around in the graph editor - is there a way to reset the data in the graph editor to the original structure? The way LW interpolated the points when I first set the keys up?

the way I see it, it's a case of Gimbal Lock. The Heading and Bank circles cross. Try working around that. If nothing else helps, parent the camera to a Null and let that one handle the Pitch.

after reading your second post, I think setting a limit to Bank could help; set the limit to 0°.

let me know if this fixes it.

if not, I can take a look at the file if you want.